ISHKOV, V.; KOZIY, E. Distribution of toxic and potentially toxic elements in the coal of the layer c₇ᴴ of the "Pavlogradskaya" mine of Pavlogradsko-Petropavlovskiy geological and industrial district. Visnyk of Taras Shevchenko National University of Kyiv. Geology, [S. l.], v. 4, n. 79, p. 59–66, 2017. DOI: 10.17721/1728-2713.79.09. Disponível em: https://geology.bulletin.knu.ua/en/article/view/1420. Acesso em: 11 oct. 2026.